Developer ecosystem comparison
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Fastmail vs segment

Developer ecosystem comparison across GitHub activity, SDKs, documentation, community, reach and momentum.

Fastmail (Open-source software developed at Fastmail.) and segment both appear on the Smoower Developer Ecosystem Index.

Fastmail (rank #430) holds a narrow lead over segment (rank #569) on the overall Smoower ecosystem score (40 vs 35). The gap of 5 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Fastmail is clearly ahead of segment. On education (docs, guides and learning material for developers), Fastmail is slightly ahead of segment. On community (issue response, PR reviews and discussion health), Fastmail is clearly ahead of segment. On reach (how visible the ecosystem is beyond its own repos), Fastmail is clearly ahead of segment. On momentum (release cadence and how fast the ecosystem moves), Fastmail is clearly ahead of segment.

Fastmail carries 6,316 GitHub stars across 38 public repos, with 12 repositories active in the last 90 days and 2 external contributors on record. segment shows 0 stars across 0 public repos, 0 active in the last 90 days and 0 external contributors.

Fastmail is the stronger read for anyone weighting momentum. segment makes more sense for teams already using its adjacent tools. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.

Side-by-side metrics

MetricFastmailsegment
Ranking
Overall rank#430#569
Pillars
Overall4035
Code350
Education6660
Community3311
Reach7857
Momentum440
Builder experience00
Signals
Stars6,3160
Forks5710
Public repos380
Active repos (90d)120
External contributors20
Avg polish350
Avg AI-readiness140

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